The Libraries subscribe to a number of databases, archives, and respositories that contain both summary statistics and raw datasets available for further analysis or integration with original data.
A selection of frequently-used library resources for data include:
Datasets are often difficult or impossible to find through normal search engines. Specialized catalogs have been developed to aggregate the results from around the web.
When to use a data catalog? As a starting place if you are still trying to narrow down the topic you are interested in. Can also be helpful to find data repositories that allow for more specific searches.
The federal government provides free public access to vast amounts of data produced through both government operations and government-funded research.